Abstract: The invention relates to a recording and/or reproduction apparatus for optical recording media with means for parallel orientation of the scanning device with respect to the surface of the recording medium, the scanning device being arranged on a slide that is guided on a guide rod. A tensioning element is provided, by means of which the guide rod of the scanning device is fixed on a baseplate in order to avoid a force transmission leading to the bending of the guide rod, said force transmission disadvantageously issuing from fixing or adjusting means of the guide rod, in an adjustable manner in a plane corresponding to the cross section of the guide rod. The fixing and adjusting device formed by means of the tensioning element has a small number of individual parts, the guide rod can be mounted on a shaped portion of the baseplate with a low outlay and nevertheless avoids to the greatest possible extent a force transmission to the guide rod that disadvantageously issues from fixing or adjusting means.

Abstract: An electromagnetic drive includes a drive plate disposed in a magnetic field. The drive plate includes a non-conductive medium with a first plurality of linear conductive elements arranged parallel to a first axis. The first plurality of linear conductive elements connects first and second electrical terminals supported by the non-conductive medium. The drive plate may be driven in the magnetic field along a second axis that is substantially perpendicular to the first axis when an electrical current of sufficient magnitude is passed through the first plurality of linear conductive elements.

Abstract: An optical pickup and optical recording or reproducing apparatus incorporating such an optical pickup is recommended, which comprises an adjustment means to adjust the actuator plate of the optical pickup, which holds the objective lens, by moving the actuator plate AP on a straight reference surface arranged in the slide base of the optical pickup to a position as defined by alignment equipment to compensate tolerances between traverse mechanism and disc motor. The adjustment means is a screw for moving the actuator plate on the straight reference surface inside the slide base against a counter spring and the alignment equipment is formed by the optical pickup, which irradiates a light beam to an optical disc inserted into the optical recording or reproducing apparatus and receives a return light from the disc as well as means for moving the optical pickup radially of the spinning optical disc.

Abstract: The present invention relates to a device for reading and/or writing to optical recording media having an optical path formed from optical elements, a focusing lens arranged in a lens holder, and a suspension for the lens holder. It is an object of the invention to develop a device of this type. According to the invention, it is provided for this purpose that the suspension of the lens holder is arranged immovably on a base body having a first bearing surface, on which the optical path rests by means of a second bearing surface.

Abstract: The invention refers to a pickup for moving storage media having a movable part movable in a 2D plane of motion where smaller airgaps between magnets and coils on a flat carrier are achieved by the movable part having a holder opening equipped to hold a part of the coil carrier in a range of positions which extend along an alignment direction which lies outside the plane of motion, and in that the part of the coil carrier is fixed within the holder opening in one position within the range; and to a manufacturing method thereof.

Abstract: The invention relates to an optical scanning device for an appliance for reading and/or writing to optical recording media, having a movably arranged optical housing with integrally formed slide faces for holding a support which is provided with mating slide faces, can be adjusted about a virtual axis and has a scanning head, having at least one adjusting screw which is supported on the housing, acts on the support, bears against the edge of an opening made in the housing, penetrates said opening with its threaded shaft in the direction of the support with play and can move in the opening in a transverse direction, and having at least one spring means which acts on the support on the side of the slide faces which is remote from the adjusting screw and tensions said support against the slide faces of the housing, and to an appliance having the optical scanning device.

Abstract: Actuator for an optical scanning device The invention relates to an actuator for an optical scanning device, having a focus lens mounted in a lens holder and having a damper base firmly connected to a mount, having a magnet arrangement arranged on the mount, and a coil arrangement interacting with the magnet arrangement, on a printed circuit board, for fine positioning of the focus lens, with the printed circuit board being connected to the damper base by means of elastically flexible suspension means arranged on both sides of the longitudinal axis of the actuator. It achieves the object of designing an actuator such as this in such a way that it has a reduced moment of inertia, because of a reduced mass. For this purpose, the printed circuit board is at the same time a mounting board for the lens holder, and the printed circuit board and the lens holder together form the moving part of the actuator.

Abstract: The invention relates to an actuator for a scanning device for scanning optical discs which has a focus lens fixed in a lens holder and a damper base permanently connected to a support. The actuator is equipped with a coil and magnet arrangement, arranged on a support, for fine positioning of the focus lens, wherein a frame is connected to the damper base with elastically flexible suspension means arranged on both sides of this arrangement and of a longitudinal axis of the actuator. It achieves the object of constructing such an actuator in such a manner that it is also suitable for small optical discs. For this purpose, the lens holder is arranged at a distance from the longitudinal axis and at the same time on a side of the actuator facing away from it and facing a receptacle for the optical discs, wherein the direction of movement of the scanning device with the actuator is located transversely to the longitudinal axis and radially with respect to the disc.

Abstract: The invention refers to a pickup for optical recording media having an actuator for focus and tracking control where, in order to avoid unwanted torque components being generated when magnets facing coils are unsymmetric, the magnetic flux in broad parts of the magnet is deliberately reduced by broadening, in that region, the neutral zone near a separation line to which the broad magnet parts adjoin

Abstract: The invention relates to a recording and/or reproduction apparatus for optical recording media with means for parallel orientation of the scanning device with respect to the surface of the recording medium, the scanning device being arranged on a slide that is guided on a guide rod. A tensioning element is provided, by means of which the guide rod of the scanning device is fixed on a baseplate in order to avoid a force transmission leading to the bending of the guide rod, said force transmission disadvantageously issuing from fixing or adjusting means of the guide rod, in an adjustable manner in a plane corresponding to the cross section of the guide rod. The fixing and adjusting device formed by means of the tensioning element has a small number of individual parts, the guide rod can be mounted on a shaped portion of the baseplate with a low outlay and nevertheless avoids to the greatest possible extent a force transmission to the guide rod that disadvantageously issues from fixing or adjusting means.

Abstract: The present invention relates to a turntable for a drive for interchangeable storage media in disc form. According to the invention, in the case of a turntable for a drive for storage media in disc form, with a bore for receiving a motor shaft of a drive motor, the diameter of the bore is greater, at least in a partial region of the bore, than the diameter of the motor shaft, so that there is a gap between the wall of the bore and the motor shaft, and the inclination and/or the position of the turntable can be set in relation to the axis of rotation of the motor shaft.

Abstract: The invention refers to a pickup for optical recording media having information tracks in a layer, and to a device for accessing optical recording media having such pickup. The pickup has a focusing servo for position control in a focus direction orthogonal to the layer, and a movable actuator suspended by suspension wires with a focussing coil divided into two partial coils stacked in focus direction interacting with a magnet. In order to allow for a more compact design, a top partial coil is located above the topmost suspension wires.

Abstract: The invention relates to a scanning device for optical discs, having an optical housing with integrally formed sliding areas for receiving a scanning unit with a carrier with a scanning head arranged thereon, which scanning unit is provided with counter-sliding areas and is adjustable about a virtual axis, the scanning unit, with at least one adjusting apparatus which is supported on the housing and acts on the carrier and with at least one spring which acts on the carrier on that side of the sliding areas which is remote from the adjusting apparatus, being tensioned against the sliding areas and being adjustable by the adjusting apparatus. It achieves the object of configuring such a scanning device for optical discs such that the structural space for the spring acting on the carrier is minimized and a separate fixing element for said spring is unnecessary.

Abstract: The present invention relates to a scanner for optical storage media, and to an appliance for reading from and/or writing to optical storage media which uses a scanner such as this. The invention proposes a scanner for optical storage media, having an objective lens which is mounted in a lens holder by means of an adhesive, with the adhesive being designed to provide protection for the objective lens.

Abstract: The invention relates to a scanning device for optical storage media, having an optical housing with sliding bearings, which are arranged at a distance from one another, for linear movement on a guide rod, and with optical components in order to form an optical path. It achieves the object of designing a scanning device such as this in such a way that its adjustment, associated with a setting of the optical path, is simplified and can be carried out precisely. For this purpose, each of the sliding bearings is formed from a sliding bearing bush which is held on a guide block, that is fixed to the housing, in such a way that it can be adjusted in a radial direction with respect to this guide block, and is self-aligning in a direction at right angles to this.

Abstract: In drop tests, the optical scanner of a drive of this type falls at high speed against a mechanical stop. Said stop is located on a plate of the drive. The fall can cause mechanical damage to the optical scanner or an associated drive. According to the invention, part of the plate is configured in a sprung manner and acts as an elastic stop for the optical scanner.

Abstract: The invention relates to a drive system for a scanning device of an information recording or reproduction device, with a carriage coupled to a toothed rack, a gear wheel mechanism driving the toothed rack and a gear housing. It achieves the object of designing a drive system of this type alternatively and in such a way that it ensures a high speed and positioning accuracy of the carriage. For this purpose, the gear wheel mechanism is secured on a supporting element and the gear housing, the gear housing consisting of a dimensionally stable material and being pivotable with the gear wheel mechanism about a spindle which is arranged perpendicularly with respect to the toothed rack.

Abstract: A protective cover for an objective of an optical head is proposed which can be moved between a position covering the objective and a position exposing the objective. In the position exposing the objective, the protective cover is positioned outside the plane between the optical head and an optical recording medium located opposite the optical head.

Abstract: The tracking for the pickup (U) of a recording or replay appliance for optical recording media in which one edge (K1) of a board (P), for example the motherboard, is used for guiding the pickup (U) is described. This edge (K1) is preferably formed as a bent edge such that it forms a guide rail (S) for the pickup (U), which engages with a guide rail (S). The pickup (U) can preferably slide or move by means of a leaf spring (F1) which engages behind the board (P) and is connected without any play to the guide rail (S) on the board (P).

Abstract: A device for reading from or writing to optical recording media, having an optical scanner for generating a scanning beam and for detecting a detection beam influenced by the optical recording medium, and a lens holder for focusing the scanning beam onto the optical recording medium; the lens holder being mechanically and electrically coupled to the scanner by retaining wires is disclosed. In a device according to the invention at least one of the retaining wires is a multistrand wire.